Features:

• High quality audio decoder which, supports MP3 and WAV audio formats.
• Works with most Windows, Mac, and Linux systems
  
• Sampling rates supported: 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 (KHz).
• Supports one-on-one 4 button trigger control mode and RS232 serial port control mode.
• In button control mode, it plays back 4 sounds one-on-one by negative triggering.
• Uses microSD card and the built-in SPI flash memory as storage.
• Built-in 4MB SPI flash memory by default.
• Supports max. 32GB micro SD card.
• Possible to load audio files to the flash memory directly via the micro USB port. Connecting to a computer is similar to using a USB flash drive with PC.
• Built-in mono 15 watt amplifier that can drive a 15 watt (8 ohm) speaker directly. Or  5 watt (if using 4 ohm speaker) 
• Equipped with a 3.5mm audio jack for stereo output that can drive an earphone directly or to connect with an external amplifier.
• Adjustable sound volume with the onboard potentiometer.
• Wide range for power input (DC 8-24V).
• PCB size: 52mmx49mm

Technical Parameters:

• Working voltage: DC 8V-24V
• Working current: ≤400mA (Input: DC12V DC)
• Working current if playback through headphone jack only: 30mA (Input 12V DC)
• Standby current: 10mA (Input 12V DC)
• Power Consumption: ≤15W
• Onboard flash memory size: 4MB
• Audio format: MP3 and WAV